schwartz



E. SCHWARTZ.

WIRE TERMINAL.

APPLICATION FILED um. 27. 1919.

1,385,928. Patented July 26, 1921.

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SUPPLY ooiirAnY,T.-Inc.-, or

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PATENT OFFICE.

. nnwannsonwanrz, or nnwyon z, n. Y., ASSIGNOR 'ro MANHATTANELECTRICALJERSEY CITY, new JERSEY, A conronnrron or WIRE-TERMINAL.

Patented July 26-, 1921.

Application fiIed'January 2'7, 1919. Serial No. 273,321.

To all whom it may concern:

Be it known that I, EDWARD SCHWARTZ, a

citizen of the United States of America-and residing in the city,county, and State of New York, have invented certain new and usefulImprovements in Wire-Terminals, of which the following is aspecification.

. My invention relates to wire terminals and particularly to terminalsfor batteries, switches, etc., the object of my invention being toprovide a simple and inexpensive terminal'adapted to firmly grip thewire and form a good mechanical and electrical connection therewith.

In the accompanying drawings- Figure 1 is a broken side elevation of abattery showing my improved wire terminal applied thereto.

Fig. 2 is a plan of the blank from which the terminal is made. v

Fig. 3 is a perspective of the terminal drawn to an enlarged scale andFig. 4- is a similar view showing the position of the parts whena wireis engaged thereby.

In the accompanying drawings, I have shown my. improved terminal in aform applicable to a battery 10. The latter is provided with the usualbinding posts 11 and 12 carrying binding nuts 13 by which wires may beclamped thereto. The improved terminals are here shown mounted on thesebinding posts, but obviously may be at tached in any suitable manner tothe poles of the battery.

As shown, the terminal is struck from spring sheet metal and formed froma single blank so that itis integral throughout. It comprises a base 14,apertured at 15, by which it may be secured to the fitting with which itis associated. Thus in Fig. 1, I

. have shown the binding post 12 passing which the strap is flexed inoperation. At the opposite end of the strap from the base, the strap isprovided with a plate or platform 21 affording a convenient rest for thefinger or thumb when pressing the strap downward against the action ofthe spring hinge 20. Intermediate thespring hinge 20 and the platform21, the strap is arched at 22 to accommodate the wire end 23 as will behere mafter described. At opposite sides of the arched area 22 are downturned stirrups 24 and 25 extending outside the sides 16 and holds thestirrups 24 and 25 well above the perforations in the side lugs 26 and27 of the channel sides 16 and 17. When it is desired to engage the wirein the terminal, the strap is flexed down by pressure on the platform 21until the stirrups 24 and 25 register with the holes in the lugs 26 and27. The bared end of the wire 23 is then inserted through the perforatedlugs 26 and 27, so that when the'strap 18 is released and rises underthe action of the spring hinge 20, the V-shaped stirrups engage beneaththe wire end and clamp it agalnst the upper sides of the perforations inthe lugs 26 and 27 The arched area 22 of the strap overlies andaccommodates the length of the wire between the lugs 26 and 27. The edgeengagement of the V-shaped stirrups and the clamping action thereof uponthe wire passing through the perforated lugs 26 and 27 affords anextremely good mechanical grip upon the wireas well as an excellentelectrical connection therewith.

The manufacture of a terminal of the construction is a very simpleoperation since the blank is readily stamped out of sheet metal and asimple bending operation suffices to form the parts into their finalshape.

I claim' 1. A spring bindin post comprising a base affording means orsecuring the post in position, upstanding channel sides thereforextending in one direction beyond the base, projecting wire-engagingmeans on said channel sides, in combination with a spring strap betweensaid sides forming a continuation of the base, but bent upward therefromand extending in the direction of the channel sides beyond the base,together a strap arched" in the area of the wire en with wire engagingmeans bent downward gaging means on the strap to accommodate fromopposite 'sides'of said strap and em the wire engaged by said means. 10bracing the'wire engaging means on the In testimony Wherwf I have signedy 5 channel sides to cooperate therewith to on name to thisspecification. r

gage and grip an inserted wire; r

2. Inthe construction specified in claim 1, v EDW. SCHWARTZ.

